diff options
Diffstat (limited to 'examples/aarch64/add3-double.cc')
-rw-r--r-- | examples/aarch64/add3-double.cc | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/examples/aarch64/add3-double.cc b/examples/aarch64/add3-double.cc new file mode 100644 index 00000000..8590d481 --- /dev/null +++ b/examples/aarch64/add3-double.cc @@ -0,0 +1,74 @@ +// Copyright 2014, VIXL authors +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// * Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// * Neither the name of ARM Limited nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND +// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE +// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "examples.h" + +#define __ masm-> + +void GenerateAdd3Double(MacroAssembler* masm) { + // double add3_double(double x, double y, double z) + // Argument locations: + // x -> d0 + // y -> d1 + // z -> d2 + __ Fadd(d0, d0, d1); // d0 <- x + y + __ Fadd(d0, d0, d2); // d0 <- d0 + z + + // The return value is already in d0. + __ Ret(); +} + + +#ifndef TEST_EXAMPLES +#ifdef VIXL_INCLUDE_SIMULATOR +int main(void) { + MacroAssembler masm; + Decoder decoder; + Simulator simulator(&decoder); + + // Generate the code for the example function. + Label add3_double; + masm.Bind(&add3_double); + GenerateAdd3Double(&masm); + masm.FinalizeCode(); + + // Run the example function. + double a = 498.36547; + double b = 23.369; + double c = 7964.697954; + simulator.WriteDRegister(0, a); + simulator.WriteDRegister(1, b); + simulator.WriteDRegister(2, c); + simulator.RunFrom(masm.GetLabelAddress<Instruction*>(&add3_double)); + printf("%f + %f + %f = %f\n", a, b, c, simulator.ReadDRegister(0)); + + return 0; +} +#else +// Without the simulator there is nothing to test. +int main(void) { return 0; } +#endif // VIXL_INCLUDE_SIMULATOR +#endif // TEST_EXAMPLES |